Added a DT schema for describing nau8325 audio amplifiers. Signed-off-by: Seven Lee <wtli@xxxxxxxxxxx> --- .../bindings/sound/nuvoton,nau8325.yaml | 82 +++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/nuvoton,nau8325.yaml diff --git a/Documentation/devicetree/bindings/sound/nuvoton,nau8325.yaml b/Documentation/devicetree/bindings/sound/nuvoton,nau8325.yaml new file mode 100644 index 000000000000..9105985357aa --- /dev/null +++ b/Documentation/devicetree/bindings/sound/nuvoton,nau8325.yaml @@ -0,0 +1,82 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/nuvoton,nau8325.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NAU8325 audio Amplifier + +maintainers: + - Seven Lee <WTLI@xxxxxxxxxxx> + +allOf: + - $ref: dai-common.yaml# + +properties: + compatible: + const: nuvoton,nau8325 + + reg: + maxItems: 1 + + nuvoton,vref-impedance: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + VREF impedance selection. + enum: + - 0 # Open + - 1 # 25kOhm + - 2 # 125kOhm + - 3 # 2.5kOhm + default: 2 + + nuvoton,dac-vref: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + DAC Reference Voltage Setting. + enum: + - 0 # VDDA + - 1 # VDDA*1.5/1.8V + - 2 # VDDA*1.6/1.8V + - 3 # VDDA*1.7/1.8V + default: 2 + + nuvoton,alc-enable: + description: + Enable digital automatic level control (ALC) function. + type: boolean + + nuvoton,clock-detection-disable: + description: + When clock detection is enabled, it will detect whether MCLK + and FS are within the range. MCLK range is from 2.048MHz to 24.576MHz. + FS range is from 8kHz to 96kHz. + type: boolean + + nuvoton,clock-det-data: + description: + Request clock detection to require 2048 non-zero samples before enabling + the audio paths. If set then non-zero samples is required, otherwise it + doesn't matter. + type: boolean + +required: + - compatible + - reg + +unevaluatedProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + codec@21 { + compatible = "nuvoton,nau8325"; + reg = <0x21>; + nuvoton,vref-impedance = <2>; + nuvoton,dac-vref = <2>; + nuvoton,alc-enable; + nuvoton,clock-det-data; + }; + }; -- 2.25.1
